baber/WOPTO huggingface dataset:
Patent GB-1204712-A (GB)
Title: Improvements in or relating to control circuit arrangements
Inventor: COOPER ROGER ANTHONY
IPC: H03K3/284
Filed: 1967-08-04
Abstract: 1,204,712. Pulse lengthening and switching circuits. MARCONI CO. Ltd. 18 April, 1968 [4 Aug., 1967], No. 35994/67. Heading H3T. A switching circuit has an output transistor switched by an input pulse, the quasi-stablestate output of a monostable transistor-pair circuit maintaining the output transistor state for a predetermined time at the end of the pulse. In the Figure a cross-coupled transistor monostable circuit is connected to a transistor T3 which has an operating device L1, e.g. a teleprinter solenoid in its output circuit. A pulse input can be applied to transistor T1 through capacitor C1 and to T3 through resistor R2. Under stable conditions, with a negative input, T1 is conducting and T2 and T3 are cut off. On receipt of a positive pulse, T3 conducts and at its completion, the monostable circuit assumes its quasi-stable state with T2 conducting and T1 cut off. During the predetermined duration of this state, T3 continues to conduct, although the input is now negative. Diode D1 removes negative charge from the base of T1 before the next triggering. Further apparatus can be controlled from terminal OUT.
Patent GB-368301-A (GB)
Title: Improvements in filter-plates for presses
IPC: B30B9/26
Filed: 1930-12-01
Abstract: 368,301. Presses for separating liquids and solids. MICHEL, M., 6, Framheinstrasse, Hamburg, Germany. Dec. 1, 1930, No. 36136. [Class 46.] A filter plate for cocoa pot-presses is composed of several layers of retiform material, such as wire gauze, hair or other fibrous fabrics, with protecting means on the face towards the material under treatment or on both faces. The outer layers of retiform material may be of finer mesh. The protecting means may consist of a perforated plate, or rivets holding the layers together may have their heads enlarged to form the protecting means. Or the protecting means may be formed of parallel strips of metal which may be perforated or have their edges serrated, two layers of such strips being sometimes used. Fig. 1 shows an arrangement in which one plate as described is fixed to the bottom a of a press-pot by means of a clamping ring e and screws eu, and another plate is held against the lower side of the press table h by clips l, r, which engage diametrically opposite projections on both the table and a clamping ring e. The plates may be provided with packing rings at their edges. Fig. 7 shows a plate comprising several layers of retiform material c with protecting plates b, f held together by rivets V. A layer of coarse retiform material g is held against the plate f by means of a ring T and rivets W.
Patent GB-783237-A (GB)
Title: Improvements in or relating to methods of manufacturing permanent magnets and permanent magnets manufactured by carrying out these methods
IPC: C04B35/26
Filed: 1955-12-16
Abstract: 783,237. Magnetic compositions. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Dec. 16, 1955 [Dec. 21, 1954], No. 36158/55. Class 38 (2). An anisotropic permanent magnet having a (BH) max  value exceeding 1.5 x 10<SP>6</SP> gaussoersted, and comprising simple or mixed crystals of M x Ca( 1-x ) O, 6Fe 2 O 3  where M is one or more of Ba, Sr and Pb and 0.6#x#1, is made of suspending the powdered crystal in an inert liquid, removing the liquid whilst applying a magnetic field, granulating the residue, moulding into the required shape in a magnetic field and sintering it between 1100 and 1400 C. BaCO 3  and Fe 2 O 3  are mixed in the ratio 1.1 ; 6 mol., compressed into blocks, sintered for 15 minutes at 1280 C., cooled, powdered and suspended in water after the addition of 1 per cent by weight of CaCO 3 . The water is removed by filtering in a magnetic field, dried, and pressed through a 2 X 2 mm. sieve. The powder is compressed in a magnetic field and sintered for 5 minutes at 1250 C. In a modification, the powder obtained by pressing through a 1 X 1 mm. sieve is sprayed with 2 per cent by weight solution of camphor in alcohol before compressing in a magnetic field and firing. The camphor binds the grains together without increasing the friction during moulding. Paraffin may be substituted for camphor. Specification 747,724 is referred to.
Patent GB-912310-A (GB)
Title: Photoelectric device
IPC: G01J1/42
Filed: 1960-10-21
Abstract: 912,310. Photo-electric photometer devices. GENERAL ELECTRIC CO. Oct. 21, 1960 [Nov. 2, 1959], No. 36176/60. Class 40 (3). A photo-electric device comprises a photo-cell in a circuit with a photo-conductive cell subjected to the same illumination and deflection means actuable by current flow in said circuit. The photo-cell may be a photovoltaic cell 1, Fig. 1, in series with the photoconductive cell 2. Alternatively the photo-cell may be a photoconductive cell in series with a battery 8, Fig. 2, both in parallel with the first photoconductive cell. In both embodiments, the cell characteristics may be chosen together with the resistance of resistor 6 and galvanometer 5 to give a logarithmic relation between the incident light and the meter deflection. Meter 5 may control a camera exposure and both cells may be formed on the same substrate.
Patent GB-870837-A (GB)
Title: Improvements in or relating to screw thread cutting machines
IPC: B23Q1/68
Filed: 1958-11-11
Abstract: 870,837. Lathe detaits. CRI-DAN. Nov. 11, 1958 [Dec. 20, 1957], No. 36251/58. Class 83 (3). In a screw-cutting lathe, the reciprocation of the tool-carriage 3 to bring the tool 5 into and out of engagement with the work is controlled by a cam 6 (and spring 14), engaging a roller or shoe 18 on a sliding rack 19 which meshes with teeth on a shaft 22 having further teeth 26 meshing with a second rack 28 which moves the carriage. The cam 6, Fig. 3, is oscillated by a cam 16 on the main cam-shaft 17 through a lever 11 and link 10, and is secured to an eccentric cam 7 which may be of the type disclosed in Specification 624, 612. The teeth 26 and 21, Fig. 2, have different helices so that longitudinal movement of the shaft 22 by a micrometer screw 25 produces relative movement of the rack 28 and hence sets the carriage 3 to the required depth of cut. The withdrawn position of carriage 3 is adjusted by a micrometer screw 30. The eccentric cam 7 is rigidly mounted on an eccentric 8b fixed to a shaft 8 supported in the saddle 1. A toothed wheel 8a secured to the shaft 8 is driven from the shaft 17 by known means, thus progressively rotating the cam 7 and advancing the cutting tool towards the work to increase the depth of cut. Specification 640,142 also is referred to.
Patent GB-997541-A (GB)
Title: Electric arc torch
IPC: B23K10/00
Filed: 1963-09-16
Abstract: 997,541. Cutting by fusion. THERMAL DYNAMICS CORPORATION. Sept. 16, 1963 [Oct. 4, 1962], No. 36378/63. Heading B3V. [Also in Division H5] In a constricted arc torch the nozzle 15 containing the arc constricting passage 16 is surrounded by a protective shell 20 electrically insulated from all other parts of the torch and extending beyond the end of the nozzle 15. The arc is struck between the electrode 13 and the nozzle 15 or the work 19. In a modification, Fig. 3, an annular sheath of air flows from passages 27 in an insulating ring 26 interposed between the shell 20 and the nozzle 15. The torch is used for cutting or gouging.
Patent GB-1181844-A (GB)
Title: An Improved Bush
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16J15/16
Filed: 1967-08-08
Abstract: 1,181,844. Bushes. F.T. PRODUCTS Ltd. 7 Aug., 1968 [8 Aug., 1967], No. 36424/67. Heading F2H. A resilient bush 10 comprises an annular head 11, an annular groove 14 bounded by abutment surfaces 15, 15a, a shank 12 and a generally biconical bore 19, 20. The biconical construction of the bore forms a restricted neck 21 which grips a pin, the bush being inserted in an aperture in a panel. The shank is longitudinally split into two resilient legs by a slot extending to the head 11. The bush is preferably formed from nylon or any suitable synthetic resin and is injection moulded. In a modification, the junction of the conical portions of the bore forming the restricted neck is rounded.
Patent GB-173431-A (GB)
Title: An improved tool for use in the game of golf
IPC: A63B57/00
Filed: 1920-12-30
Abstract: 173,431. Drysdale, J. D. Dec. 30, 1920. No Patent granted (Sealing fee not paid). Tee moulds. - A mould for making golf tees of varying heights is formed with a plunger-rod c upon which is threaded a nut g having a projection g<1> which engages with a recess b<1> formed in the cover of the mould. The mould is forced into the sand and the tee is ejected from the mould by pushing the plunger downwards against the resistance of the spring e. According to the Provisional Specification, the projecting plunger-rod may be dispensed with, a spring being placed between the top of the mould and the piston, stops being provided for limiting the upward and downward movements of the plunger.
Patent GB-401514-A (GB)
Title: Method of and apparatus for determining the transparency of a fluid
IPC: G01N21/25
Filed: 1932-12-23
Abstract: 401,514. Photometric apparatus. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Light Sensitive Apparatus Corporation; 7721, North Kostner Avenue, Niles Center, Illinois, U.S.A.) Dec. 23, 1932, No. 36540. [Class 97 (i).] The transparency of a fluid is measured by forming a film of the fluid of known thickness, passing rays of light of known intensity through the film, and receiving the transmitted rays upon a light-sensitive source of E.M.F connected to an indicating instrument. The invention is particularly intended for measuring the transparency of the lubricating oil from an internal-combustion engine and hence deducing the degree of contamination of the oil. The oil is introduced into a vessel 8 and passes through a passage 15 into a pump cylinder 3 so that by operating the pump the oil is forced down to form a film between two glass discs 21 spaced about .01 in. apart. The discs are mounted in a casing 22 carrying on one side a support 24 for a lamp 35 and on the other side a frame 27 in which is secured by a plate 29 and screws 30 a photo-electric cell 33 of the kind which operates without the application of any external E.M.F, the cell being connected to a microammeter 43. The intensity of the lamp can be adjusted by a rheostat 41 so that a full scale deflection of the meter 43 is obtained when there is no oil film between the plates 21. The subsequent deflection after oil has been forced between the plates is then a measure of the transparency of the oil.
Patent GB-1236454-A (GB)
Title: A device for securing doors and the like closures
Inventor: CERUTTI PIERO
IPC: E05B65/16
Filed: 1968-07-31
Abstract: 1,236,454. Multiple fastenings. P. CERUTTI and G. DELLEDONNE [trading as SOC. ACCESSORI CONTAINER AFFINI S.A.C.A. DI CERUTTI P. & C. S.A.S.], 31 July, 1968 [1 Aug., 1967; 20 March, 1968], No. 36556/68. Heading E2A. A door fastening comprises a catch 12 at each end of a rotatable rod 5 mountable on the door and a lug projecting from a base plate 10 mountable on the door frame each catch has a pair of spaced flanges engageable beneath the lug 11 when the bar is rotated in one direction and thereafter resists movement of the bar in either direction along its axes, further rotation of the bar in the one direction and movement of the bar in a direction normal to the base plate. The rod is rotated by a handle 7 and is connected to a parallel rod 5, with a catch 12 at each end engageable with a lug 11, by two parallel rods pivoted to extensions from collars secured to each rod 5. In a modification, the lug has a rib 35 of decreasing height which extends along the mounting plate to a shoulder plate 34, the rib is engageable in a groove 42, also of decreasing height, in the catch, Fig. 11. (For Figures see next page)
Patent GB-1168416-A (GB)
Title: Films which can be Shrunk
Inventor: WINGLER FRANK
IPC: B29C55/00
Filed: 1968-08-01
Abstract: 1,168,416. Shrinkable films. FARBENFABRIKEN BAYER A.G. 1 Aug., 1968 [2 Aug., 1967], No. 36650/68. Heading B5B. A process for the production of films which can be shrunk comprises the steps of: (a) preparing a film which consists of either a copolymer of 80-99% by weight of vinyl chloride and 20-1% by weight of ethylene, in which up to 50% by weight of the ethylene may be replaced by propylene or isobutylene, or consists of a mixture of 20-99% by weight of these copolymers with 80-1% by weight of polyvinyl chloride; (b) stretching such a film at a temperature which is above the softening range of the copolymers and is between 40‹ and 100‹ C.; and (c) allowing the film to cool to room temperature while maintaining the stretch in the film. A preferred composition comprises 85-98% by weight of vinyl chloride with 15-2% by weight of ethylene. As the ethylene content of the films increases, the stretchability is improved, but the tensile strength is reduced, so that by suitable choice of composition, films having any desired properties may be obtained. Films so made may be coloured before or after the shaping operation and are normally crystalclear and pliable, resistant to tearing and impact and have a good solvent resistance to alcohols and petroleum hydrocarbons. The stretching operation in step (b) is preferably conducted at from 50-80‹ C., and the shrinking step may be performed, when required, by heating with air, steam, infra-red radiation, high frequency radiation or by immersion in hot water, temperatures from 40-100‹ C., and especially from 50-80‹ C. being used. Shrinking is advantageously effected by dipping in hot water. Films may be made by melt extrusion or casting from solution. Examples are given In Example 6, 40 grams of ethylene-vinyl chloride copolymer with an ethylene content of 15% by weight and 60 grams of normal commercial vinyl chloride suspension homopolymer are each dissolved in 150 c.cs. of tetrahydrofuran, and then the solutions mixed and cast as films. After drying the films in air, the residue of solvent is eliminated by heating for 48 hours at 60‹ C. in a drying chamber. In all the examples, the films are stretched at 60- 80‹ C., cooled to about 25‹ C. while elongation is maintained, and shrunk by dipping in water at about 70‹ C.
Patent GB-522648-A (GB)
Title: Improvements in and relating to moulding thermosetting plastic material, particularly for rubber printing plates
IPC: B29C70/46
Filed: 1938-12-16
Abstract: 522,648. Compound sheet materials. BAKELITE, Ltd. Dec. 16, 1938, No. 36748. Convention date, June 17. [Class 140] [Also in Groups V and XVI] In moulding articles, such as printing plates, thermo-setting plastic material, such as natural or synthetic rubber, vinyl derivatives or phenol or urea aldehyde resins, is forced through the whole or portions of a foraminous sheet which is composed of textile fabric impregnated with a fixative serving to lock the threads where they ,cross but not filling the spaces between the threads, such sheet being placed over the face of a matrix so that plastic material is extruded into the depression or depressions of the matrix and sufficient material remains as a bed for the sheet which thereafter' constitutes a part of the moulded article. A composite sheet for use in the moulding operation comprises a layer of uncured rubber composition superimposed on and attached to a foraminous sheet of textile fabric which has been previously impregnated with a heat-hardenable resin and cured so that the threads of the fabric are locked where they cross but the spaces between them are not filled up. The textile fabric may have been pre-shrunk and the threads locked together with a varnish fixative such as one containing a heat-hardenable phenol' resin. The fixative may however be starch, silicate of soda or glue. The sheet may be a cotton fabric having a mesh of 80 threads per inch or less. A composite sheet is formed by calendering a layer of rubber composition on to the foraminous sheet.
Patent GB-1156785-A (GB)
Title: Device for Supporting and Rotating a False Twist Spindle.
Inventor: MATTINGLY DENIS ALBERT EDWARD
IPC: D02G1/06
Filed: 1965-08-27
Abstract: 1,156,785. Twist tubes. KLINGER MFG. CO. Ltd. 19 Aug., 1966 [27 Aug., 1965], No. 36838/65. Heading D1D. A yarn false-twisting hollow spindle 21 is maintained in frictional driving contact with the peripheries of wheels 14, 15, rotatable on a shaft 10 and is supported by a fixed, permanent, horse-shoe magnet 20. The limbs 18, 19, straddle the shaft and the magnetic poles lie in a plane normal thereto and opposite a magnetic or magnetisable part of the spindle e.g. a cylindrical, laminated, soft-iron armature 22 through which the spindle extends, which is thereby drawn towards the shaft. Armature locators 23 with flanged edges 24 prevent wander of the spindle, from one position and also in an axial direction.
Patent GB-809015-A (GB)
Title: Stable aqueous suspensions of tetracycline
IPC: A61K31/65
Filed: 1956-12-03
Abstract: Magnesium tetracycline is prepared by reacting tetracycline, or a salt thereof such as the hydrochloride, with a magnesium salt such as the hydrochloride in an aqueous medium at a pH of 7.4 to 9.0 and preferably 8.5.  The ratio of tetracycline to magnesium is from 1 : 1 to 1.5 : 1.  The aqueous medium may be water, a mixture of water and a water-miscible organic solvent such as methanol, or such a solvent containing as solubilizer a water-soluble carbohydrate, e.g. sucrose. Magnesium tetracycline is stable in aqueous suspension (see Group VI).  Specifications 747,779 and 793,558 are referred to.ALSO:A stable, easily resuspended tetracycline preparation of good colour comprises a suspension of magnesium tetracycline in an aqueous vehicle, the insoluble solids in the preparation having a particle size of less than 100, and preferably 10-20 microns. The magnesium tetracycline is such that the ratio of tetracycline to magnesium ions is from 1 : 1 to 1.5 to 1 (see Group IV (b)). The vehicle is an aqueous solution of a sugar such as sucrose or invert sugar, as such, or with the further addition of glycerol or glycol, or other aqueous solution such as sorbitol.  Optional additions are (a) synthetic sweetening agents such as sodium cyclohexanesulphamic acid or saccharin; (b) flavouring agents, e.g. chocolate, cocoa, coffee, fruit acids such as citric, ascorbic and tartaric; banana, wild cherry and raspberry flavours; oils of peppermint, spearmint and orange; (c) medicinal dyes (The Merck Index 6th Edition, pages 1112-1116); (d) preservatives such as methyl p-hydroxybenzoic acid, sodium and calcium propionate, cinnamaldehyde, sorbic acid and benzalkonium chloride; (e) antioxidants such as sodium bisulphite and sodium metabisulphite; and (f) other therapeutic agents such as amino acids and vitamins.  In one example, a 1 : 1 magnesium tetracycline, sodium cyclohexanesulphamate, methyl- and propyl-p-hydroxybenzoate, sodium metabisulphite, oil of orange, a mixture of red and yellow dye are dispersed in a vehicle containing 60 per cent sucrose and 10 per cent glycerol in water, the preparation being adjusted to pH 7.5 with citric acid.  The vehicle may be replaced by a 70 per cent aqueous solution of sorbitol.  Specifications 747,779 and 793,558 are referred to.
Patent GB-1207608-A (GB)
Title: Improvements in or relating to attachments for rearview mirrors in automotive vehicles
IPC: B60R1/04
Filed: 1968-08-05
Abstract: 1,207,608. Rear view mirrors. BRAAS SPEGELINDUSTRI AB. 5 Aug., 1968 [18 Aug., 1967], No. 37227/68. Heading B7J. An attachment for a vehicle rear view mirror, which can break away on receiving a heavy impact, comprises one plate 3 secured to the mirror arm 1 and a second plate 4 attachable to the vehicle body 5; one of the plates having a projecting headed pin 6, while the other plate has a corresponding recess 7, the recess having at its edges bar springs 8, 9 which by engaging the pin 6 beneath its head secure the plates together; the plates also being provided with protuberances 10 and depressions 11 corresponding to and adapted to engage each other when the plates are secured together. The bar springs 8, 9 are fixed in parallel grooves 12, 13 in the plate 4. The protuberances and depressions are diametrically located relative to the pin, are elongated, and have semi-circular cross-sections.
Patent GB-1040765-A (GB)
Title: Apparatus for releasing sheets from self-closing grippers
IPC: B25J9/10
Filed: 1963-09-23
Abstract: 1,040,765. Removing sheets of glass from lifting-dogs. COMPAGNIE DE SAINT-GOBAIN. Sept. 23, 1963 [Sept. 21, 1962], No. 37328. Heading B8H. A sheet of glass 2, Fig. 6, is removed from a pair of lifting dogs 1 by a support 6 which first raises the sheet vertically to take the weight off the dogs and then moves the sheet obliquely upwards to disengage it from the jaws. The upward lift is provided by a pneumatic ram 16, Fig. 4, having a piston 13 and a piston rod 12<SP>1</SP> which is rotatable by a bevel gear 28 and a splined rod 23. The oblique movement is produced by a combination of upward movement and angular movement of the support 6 to the position shown chain dotted in Fig. 5. The angular movement is effected by a motor-driven catch 36 and bevel gears 34, 35 and associated shafts. The sheet passes through a furnace 44, Fig. 3, and blowers 45 on a conveyer 43, Fig. 6, and is then removed from the dogs at the position a 1 , b 1 , Fig. 3. From this position the sheet is turned through 90 degrees by the transfer mechanism 30-33, Fig. 6, placed in a slot 42 in position a 6 , b 6 , Fig. 3, on a step-by-step conveyer 41. An auxiliary sheet lifter 46, Fig. 6, operated by a ram 47 may be provided but is usually unnecessary.
Patent GB-1511718-A (GB)
Title: Plastics heat exchange tube for use particularly in cooling towers
IPC: F28F21/06
Filed: 1975-09-11
Abstract: 1511718 Pipe couplings ECODYNE CORP 11 Sept 1975 [20 Dec 1974] 37450/75 Heading F2G [Also in Division F4] An upright, plastics, heat exchanger tube 10 (see Division F4) is secured between end plates 17 and 26 by means of connectors 70 and 84 also of plastics material. The upper connector 70 has a cavity 78 therein shaped (e.g. as a spiral) to receive the upper end of the tube 10, the connector initially comprising two parts which are bonded together after the tube has been positioned therein. An annular flange 80 is for securing the connector into an aperture in the end plate 17 via a rubber grommet 82. The lower connector 84 is forced through an opening 96 in the end plate 26 and is held there by flanges 92, 94. The lower end of the tube is said to be received in a counterbore 86 of the connector 84. 90 is a device in a bore 88 of the connector 84, for distributing water passing out of the tube to a space 30.